Step by step instructions, muscle activation and variants for the Straight Leg Opposite Sit-Up.
The Straight Leg Opposite Sit-Up is a bodyweight core exercise where you perform a sit-up and reach one hand toward the opposite straight leg, creating a rotational component that intensely targets the obliques alongside the rectus abdominis.
Common mistakes content is coming soon.
The Straight Leg Opposite Sit-Up is a foundational movement that builds strength and muscle through controlled, progressive overload. Train it 1 to 2 times per week with 3 to 5 working sets per session, gradually adding weight or reps as form holds up.